[Modify] Polish it

websocket-sharp/WebSocket.cs

@@ -428,7 +428,7 @@ namespace WebSocketSharp
     /// </summary>
     /// <remarks>
     /// The default logging level is <see cref="LogLevel.Error"/>. If you would like to change it,
-    /// you should set the <c>Log.Level</c> property to any of the <see cref="LogLevel"/> enum
+    /// you should set this <c>Log.Level</c> property to any of the <see cref="LogLevel"/> enum
     /// values.
     /// </remarks>
     /// <value>